import scrapy


class ProxyUseSpider(scrapy.Spider):
    name = "proxy_use"
    # allowed_domains = ["a.com"]
    # start_urls = ["https://a.com"]
    async def start(self):
        yield scrapy.Request("http://httpbin.org/get?age=10")


    def parse(self, response):
        print(response.json())
